#223B74#223B74

#223B74 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.103 H 264.2°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#223B74
RGB	rgb(34, 59, 116)
HSL	hsl(222, 55%, 29%)
HSV	hsv(222, 71%, 45%)
CMYK	cmyk(70.7%, 49.1%, 0%, 54.5%)
CIE-LAB	lab(25.95, 11.11, -35.69)
CIE-LCH	lch(25.95, 37.38, 287.30°)
OKLab	oklab(36.54% -0.0105 -0.1022)
OKLCH	oklch(36.54% 0.103 264.2)
XYZ	xyz(5.3749, 4.7284, 17.1490)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223B74 #745B22

analogous

#226474 #223B74 #322274

triadic

#223B74 #74223B #3B7422

tetradic

#223B74 #742264 #745B22 #227432

square

#223B74 #742264 #745B22 #227432

split-complementary

#223B74 #743222 #647422

monochromatic

#070C18 #142345 #223B74 #3053A3 #476FC9

Accessibility & contrast

On white

10.79

#223B74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#223B74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223B74

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223B74	#FFFFFF	#000000	##FFFFFF
##223B74	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4176

Deuteranopia (green-blind)

#0C3A73

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #223b74;
/* rgb */ color: rgb(34, 59, 116);
/* oklch */ color: oklch(36.5% 0.103 264.2);

Tailwind

colors: {
  custom: {
    50: '#68709c',
    500: '#223b74',
    950: '#000000',
  },
}

SCSS

$custom: #223b74;
$custom-light: #68709c;
$custom-dark: #000000;

JSON

{
  "hex": "#223b74",
  "rgb": {
    "r": 34,
    "g": 59,
    "b": 116
  },
  "hsl": {
    "h": 221.707,
    "s": 54.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36542,
    "c": 0.10272,
    "h": 264.2
  },
  "luminance": 0.04729
}

Semantic roles & 50–950 ramp

primary

#223B74

secondary

#A78B4B

accent

#B14ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #223B74

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →